کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9629186 | 461296 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrochemical reduction of pyrite in aqueous NaCl solution
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
Optimum conditions for pyrite removal from a high-sulfur coal by electrochemical reduction during flotation are determined by orthogonal experiments. The electrochemical reduction process of pure pyrite is examined with XRD, electrochemical and chemical analysis. The results show that the electrochemical reduction products of pyrite are FeS and S2â. During this process, the reactions at cathode are: FeS2+2eâFeS+S2â and 2H++2eâH2. The corresponding electrode potentials and kinetic equation are determined. The conversion of hydrophobic pyrite to hydrophilic FeS and S2â by electrochemical reduction is beneficial to desulfurization from coal in floatation process.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 84, Issues 2â3, JanuaryâFebruary 2005, Pages 235-238
Journal: Fuel - Volume 84, Issues 2â3, JanuaryâFebruary 2005, Pages 235-238
نویسندگان
Wei Zhao, Hong Zhu, Zhi-Min Zong, Jian-Hua Xia, Xian-Yong Wei,